Filtration Stage: 1st stage: Pre-filter P.P 5 micron. ~ This pre-filter filter out dirt, rust, and purity. 2nd stage: Lose carbon filter ~ Remove chemical such as odors, chlorine, and chemical fertilizer. ~ Protects RO membrane. 3rd stage: P.P filter 1 micron ~ Filter fine particles and harmful pollutants. ~ Protect and increase the efficiency of RO membrane. 4th stage: RO membrane 0.0001 micron (0.001 micron only) ~ Advanced membrane technology separate and drain out impurities such as bacterial, virus, lime, heavy metal, pesticide, and chemical and produce clean and pure water. 5th stage: Activated Carbon Filter ~removing organic material and resistance anti-bacteria from water and have super antioxidant ORP of up to -250mV. Antioxidant Mineral can abundance of negative ions for reducing oxidation at human body, prevent free radicals, antioxidant thus anti aging & anti tiring also. Furthermore with small water molecule clusters and thus is more easily absorbed into our body. Recommend replacement 3 years or within 20,000 liters whichever come first
